抽樣總體 的英文怎麼說

中文拼音 [chōuyàngzǒngtǐ]
抽樣總體 英文
population of samples
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 總 : Ⅰ動詞（總括; 匯集） assemble; gather; put together; sum up Ⅱ形容詞1 （全部的; 全面的） general; o...
  • 體 : 體構詞成分。
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  2. Whenever we sample, we always miss some helpful information about the population.

    無論在什麼條件下進行抽樣，總會丟掉一些對于總體有用的信息。
  3. First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by brewer, durbin, sampford, des raj, murthy, rao - hartley - cochran. then, at the basis of rao and bayless ' s study, we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super - populations, and compare the stabilities of estimators of the methods that given above. we find that the minor difference between two super - populations has great effect on the efficiency of the estimators for the population with moderately large coefficient of variation ( c. v. )

    本文首先從理論上介紹了若干種不等概率抽樣方法，它們的估計量、估計量的方差及其估計，其中包括有放回ppz及pps抽樣，不放回不等概率抽樣中的brewer 、 durbin 、 sampford 、 desraj ， murthy 、 rao - hartley - cochran等人的方法；其次，在rao和bayless兩人就樣本單元數n = 2的情形對上述抽樣方法進行比較的基礎上，將總體隨機地分成兩個子總體，視每個子總體取自不同的線性超總體，在文中，我們利用計算機實現隨機分組，並通過畫圖比較各方法估計量的穩定性，結果表明，對變異系數c . v . （ x ）較大的總體而言，兩個超總體之間的微小差異將對估計量的穩定性產生很大的影響，從而說明rao和bayless的比較結果還不夠完善。
  4. The census and statistics department conducts regular sample surveys on the labour market situation. the survey results are released in a number of publications, including the quarterly report on general household survey ; the quarterly report of employment and vacancies statistics ; and the quarterly report of wage and payroll statistics, etc. some major employment statistics can be found at

    政府統計處就本港整體的就業情況定期進行抽樣調查，為市民提供最新資訊，統計調查結果會刊載于有關刊物內，包括： 《綜合住戶統計調查按季統計報告》 ； 《就業及空缺按季統計報告》 ；及《工資及薪金總額按季統計報告》等等。
  5. In order to manifest how the main bodies react to each other during the spin - off process of new ventures ; we theoretically summarize and analyze the modes of resources distribution on the basis of sample investigation

    在抽樣調查的基礎上，本文還對我國學術型高技術企業衍生過程的要素組合模式進行了理論總結和分析，較全面地反映了在新企業衍生過程中各要素主體相互作用的各種方式。
  6. We believe the principle reasons are : there is disparity in the conception of the domestic tourist, sampling methods are not universal ; the totality surveyed or calculated is inconsistent

    認為其主要原因是：國內旅遊者的概念理解存在差異；抽樣調查方法不統一；推算的總體不一致等。
  7. In chapter 1, the author first study the two - stage confidece intervals for the variance of a normal distribution, then work out the optimal sample size of the first stage by numerical computations and establish a proof for the non - existence of fixed - size sampling

    在第1章里，作者首先研究了正態總體方差的兩步置信區間，並用數值計算的方法給出了第一步的最優抽樣量，且證明了固定樣本抽樣的不存在性。
  8. The present methods for testing the large - scale corpus segmentation have the following faults : a. it is difficult to exactly estimating the variance of population ; b. the sampling quantity is too large to test the corpus segmentation. to solve the given problems, we put forward the testing method based on clustering, which sorts the sample of corpus into many group by clustering them

    語料庫分詞質量的評價問題是漢語語料庫的特有問題，已有的簡單隨機抽樣的方法，當語料庫規模變大時，無法精確估計分詞質量評價中語料庫樣本的總體方差，同時，為了保證檢驗的精度，傳統抽樣方法的檢驗費用太高。
  9. Before we can understand what a particular sample can tell us about the population, we should first understand the uncertainty associated with taking a sample from a given population

    要能夠理解一個具體的樣本究竟能夠傳遞關于總體的什麼樣的信息，我們首先需要理解從一個給定的總體中抽取樣本時究竟有什麼樣的不確定性。
  10. Feng shiyong and zou guohua. a new method for increasing precision in survey sampling acta mathematica scientia, 2001, 18 ( 1 ) 282 - 288

    馮士雍，關于樣本對總體代表性問題的認識與討論兼論抽樣調查中輔助變量的，作用，統計研究， 2001年第9期30 - 34
  11. Determining the sample size is crucial for a survey sampling design, for which traditional approaches have to seek some information on population variance or survey costs, however, which may result in either sample size too small and real precision undre desired level, or sample size too large and waste of survey costs

    摘要樣本量的確定是抽樣設計中的關鍵問題，傳統方法利用總體方差和調查費用的有關信息來確定樣本量可能產生兩種結果，一種是樣本量過低，無法保證希望的估計精度要求；一種是樣本量過高，導致調查經費的浪費。
  12. In this paper, i study above two issues and gain some results as follows : 1. under population follow normal distribution hypothesis, designing combine median - range adaptive control charts with variable sampling interval, variable sample size and variable control limit. it may be regarded as previously median - range extension

    在假設總體服從正態分佈的條件下，設計了抽樣區間，樣本容量和控制限都變化的全變化參數的中位值-極差聯合控制圖。它是以前的中位值-極差聯合動態控制圖的推廣。
  13. Single sampling procedures and tables for product quality audit of small population by attributes

    產品質量監督小總體計數一次抽樣檢驗程序及抽樣表
  14. As a part, the construction quality index ( cqi ) can be used for evaluating the chinese construction quality status ; and some technical meth2ds such as spot checks and analytic hierarchy process can be used for getting macro and micro construction quality assessment results

    該體系以建設工程質量指數（ cqi ）作為我國建設工程總體水平的綜合衡量指標，並運用抽樣調查、項目質量評價的層次結構模型等一系列技術方法，逐步得出建設工程質量的微觀和宏觀評價結果。
  15. Empirical likelihood method under stratified random sampling using auxiliary information and the information in the strata population size

    在分層抽樣下有效利用輔助信息及含于層總體大小中的信息的經驗似然方法
  16. The problem of lack parking space hinders the grow of the city. so it ’ s important operation significance to study and improve the guide line of parking space for buildings in major urban districts of chongqing. this article analyzes the development of public traffic and status quo of urban parking in china oanalyzes and studys the policies of urban parking and the experiences of establishing indicator system in and out of china, conbines the returns of the system planning of chongqing, the traffic development strategy of chongqing, the integrating traffic planning in major urban districts of chongqing, analyzes and demonstrates deeply the status quo of urban parking and existed problems on sample survey, then founds the predicting model of parking demand and the model of growth rate of parking demand

    本文通過對我國城市交通的發展、城市停車狀況的分析和對國內外城市停車政策和指標體系制定經驗的分析研究，結合重慶市總體規劃、重慶市交通發展戰略和重慶市主城區綜合交通規劃等研究成果，在抽樣調查的基礎上，對重慶市主城區停車現狀及存在問題進行了深入的分析論證，建立了建築物停車需求預測模型和停車需求增長率模型，提出了重慶市停車發展戰略，制定了具有可操作性的主城區停車配建指標體系，細化了建築物分類標準及基數單位，並提出了實施相關停車政策的建議。
  17. The method for retaining sampled units in successive sampling survey for changed probability of selection is introduced. for pps sampling design, a model - design unbiased predictor for the total of a variable for the target population is proposed, and the optimum matching ratio for the predictor under the assumption of unchanged population is calculated. for rhc sampling design, the equation that the optimum matching ration satisfies is given

    介紹了連續抽樣中概率發生變化時保留樣本的方法。對于有放回的pps抽樣，在假設的超總體模型之下提出了總體變量總值的模型設計無偏預報量，並計算了總體不變時保留樣本的最優匹配比。對于無放回的rhc抽樣，給出了最優匹配比滿足的方程。
  18. This article tries to model the goal programming by the study of stratified sampling about a single - collectivity and a multi - collectivity on the condition that the total amount of investigation expresses and the requirement of accuracy in the investigation have been given

    摘要在給定調查總費用及調查精度要求的情況下，分別建立了單個總體及多個總體的分層抽樣調查的目標規劃模型。
  19. In this article according to the examine and analysis of the specimen and land price the authors made the conclusion that to examine, survey and calculate the land price of all the specimen are the key of the basic land price

    本文在基準地價測算的基礎上，檢驗、分析巴彥浩特鎮樣點及地價，提出了抽樣樣本的總體和方差檢驗、準確的測算地價是基準地價更新的關鍵。
  20. The writer made a large scale investigation on the point of satisfaction with the services from both huaihua mobile communication company and huaihua union communication company, and also has made a quantitative estimate on the satisfaction generally and variously

    本研究採用分層的系統抽樣方法，對懷化市兩大移動通信公司? ?懷化市移動通信公司與懷化聯通公司進行了較大規模的客戶滿意度調查。在調查的基礎上，對兩公司的總體滿意度及各方面滿意度進行定量評估。
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